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To retrieve the Optimizer activity log, including swaps that have been completed, use the following

s command: y m o p t m z r e a d l o g _ t y p e R U N T I M E [ - s t a r t < d a t e _ t i m e > ]

[ s t o p < d a t e _ t i m e > ]

To retrieve the Optimizer error log, use the command: s y m o p t m z r e a d l o g _ t y p e E R R O R [ - s t a r t < d a t e _ t i m e > ]

[ s t o p < d a t e _ t i m e > ]

The log that is returned includes DOS line-feed characters that can be removed using sed or another text editor:

cat opt_log.txt | sed s/^M$// > cleaned_opt_log.txt In a UNIX shell, the ^M should be typed using CTRL-V CTRL-M. The symoptmz read command can be used to identify why a swap was not performed.

VLUN migration

The symotmz CLI command can define and start a migration session, The source devices can be either enumerated or identified by using an existing Solutions Enabler device group. The list of target disks can be either enumerated or identified by using the existing SymmWin disk groups. SymmWin disk groups usually define disk tiers and consist disks from the same type and speed.

For initiating a migration: migrate dev[s] <start_dev1>[:<end_dev1>] [,<start_dev2>[:<end_dev2>],...] TO disk[s] {disk1} [,{disk2},...] [unmapped=TRUE] [unmasked=TRUE] [ b e g i n _ a t = < t i m e _ v a l > ] ;

migrate device_group <dgname> TO disk_group_num <disk_group_num>

[unmapped=TRUE] [unmasked=TRUE] [ b e g i n _ a t = < t i m e _ v a l > ] ;

migrate device_group <dgname> TO disk[s] {disk1} [,{disk2},...] [unmapped=TRUE] [unmasked=TRUE] [ b e g i n _ a t = < t i m e _ v a l > ] ;

EMC Symmetrix Optimizer A Detailed Review

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